The Tokyo Auto Salon brings out the wildest tuners, fastest sports cars, and craziest automaker concepts. Toyota brought an Auris, Prius, and IQ. Woo?
Gazoo Racing's GRMN iQ Racing Concept, based on the Lilliputian Toyota iQ, is the most "exciting" car in the line-up with a "supercharged" engine and deep front air-dam. It's designed for the "track."
The other two customized cars are the G Sports Prius and the TRD Auris GT Concept, which makes sense because those are the other two sports cars they offer. There's nothing implicitly wrong with the Auris or iQ, but man cannot live by econoboxes alone.